Answer :
The quantity of natural killer cells, which target the immune system, rises in response to stress.
Your body may respond to stress in the same way as it would to an infection or other illness. The only distinction is that it starts in the brain rather than being started by your immune system. Similar to how it works in response to a signal from your vagus nerve, your brain releases cytokines in response to stress.
Even though stress stimulates your immune system, it may make it harder for you to fight against actual infections. Your body produces cytokines as a result of chronic stress over an extended length of time. Inflammatory cytokines are produced.
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